html{
  font-size: 18px;
  -ms-touch-action: none;
  overflow: hidden !important;
  -ms-user-select: none;
}

body {
  height: 100%; width: 100%; margin: 0; padding: 0;
  background-color: white;
  height: 100%;
  width: 100%;
  line-height: 1.4;
  font-size: 18px;
  -ms-touch-action: none;
  overflow: hidden !important;
  font-family: 'Roboto', sans-serif;
  font-size: 3rem;
  font-weight: 400;
}

<!–[if IEMobile]>
@media (max-width: 1400px) { html { font-size: 36px; }}
@media (max-width: 1200px) { html { font-size: 34px; }}
@media (max-width: 1100px) { html { font-size: 32px; }}
@media (max-width: 1000px) { html { font-size: 28px; }}
@media (max-width: 900px) { html { font-size: 22px; }}
@media (max-width: 800px) { html { font-size: 16px; }}
@media (max-width: 700px) { html { font-size: 15px; }}
@media (max-width: 600px) { html { font-size: 13px; }}
@media (max-width: 500px) { html { font-size: 12px; }}
@media (max-width: 400px) { html { font-size: 11px; }}
@media (max-width: 340px) { html { font-size: 9px; }}
<![endif]-->
<![if !IEMobile]>
@media (max-height: 1400px) { html { font-size: 36px; }}
@media (max-height: 1200px) { html { font-size: 34px; }}
@media (max-height: 1100px) { html { font-size: 32px; }}
@media (max-height: 1000px) { html { font-size: 28px; }}
@media (max-height: 900px) { html { font-size: 22px; }}
@media (max-height: 800px) { html { font-size: 16px; }}
@media (max-height: 700px) { html { font-size: 15px; }}
@media (max-height: 600px) { html { font-size: 13px; }}
@media (max-height: 500px) { html { font-size: 12px; }}
@media (max-height: 400px) { html { font-size: 11px; }}
@media (max-height: 340px) { html { font-size: 9px; }}
<![endif]-->

* {
  box-sizing: border-box;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-tap-hightlight-color: transparent;
}

.interface-container{
  width: 100%;
  height: 100%;
}

.interface-container .title{
  font-size: 1.2rem;
  text-align: center;
  padding-top: 2rem;
  color: #323232;
}

.interface-container .input-container{
  text-align: center;
  padding-top: 1.5rem;
  position: relative;
}

.interface-container .input-container .input-code{
  color: #aab5b8;
  border: none;
  -moz-border-bottom: .1rem solid #cdd7d9;
  -webkit-border-bottom: .1rem solid #cdd7d9;
  border-bottom: .1rem solid #cdd7d9;
  padding-bottom: .3rem;
  display: inline-block;
  width: 18rem;
  height: 2rem;
  font-size: 1.2rem;
  outline: none;
  font-weight: 300;
}

.interface-container .input-container input::-webkit-input-placeholder{
  color: #aab5b8;
  font-size: 1.1rem;
  font-weight: 300;
  height: 2rem;
}

.interface-container .input-container .edit-icon{
  position: absolute;
  right: 0;
  color: #99a7aa;
  font-size: 1rem;
}

.interface-container .btn-container{
  text-align: center;
  padding-top: 2rem;
}

.interface-container .btn-container .active-btn{
  display: inline-block;
  padding: 2% 15%;
  margin: 0 auto;
  color: #10b5d8;
  font-size: 1.2rem;
  font-weight: 400;
     -moz-border-radius: 2rem;
  -webkit-border-radius: 2rem;
          border-radius: 2rem;
     -moz-border: .1rem solid #10b5d8;
  -webkit-border: .1rem solid #10b5d8;
          border: .1rem solid #10b5d8;
  text-align: center;
}